PORT-AU-PRINCE, Haiti (CNN) -- The death toll rose to 84 Saturday night in the collapse of a Haitian school as international aid crews continued sifting through the wreckage, a local journalist said Saturday night.

Volunteers in Petionville, Haiti, load a collapse victim into a Red Cross ambulance.

The bodies included a teacher and 20 students, Preval said, according to Renois.

However, Drouen said it was difficult to say exactly how many people were inside the school.

"Yesterday, there was a special event at the school, so there were not only pupils but family members and friends who were invited," he said. "It's very difficult to say how many people were in the school."

A fire brigade team from Martinique with dogs discovered the two living children, Drouen said.

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At least one member of the Haitian Parliament has raised questions about whether the school was built for the number of students and teachers who were inside when it collapsed, Renois said. The official described the building as "not quite solid."

"This is a very weak construction," he said. "The structure is really weak."

Michaele Gedeon, president of Haiti's Red Cross, said that while she was on the phone with rescuers trying to coordinate their efforts, she could hear the voices of distraught children.